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determinands > acid recoverable silica
PREFERRED TERM
acid recoverable silica  
DEFINITION
  • Total acid recoverable silica, includes dissolved fraction plus that which was present in particulates but dissolved by acidification of the unfiltered sample to 1% with concentrated high purity nitric acid, without heating. This acidification takes place upon sampling and prior to cold storage and subsequent analysis
BROADER CONCEPT
NARROWER CONCEPTS
ENTRY TERMS
  • dissolved plus acid recoverable silica
  • total acid available silica
  • total acid recoverable silica
  • total SiO2
CONTRIBUTOR
  • dgwr
CREATOR
  • dgwr
URI
http://onto.nerc.ac.uk/CAST/251
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